/*
 * Copyright 2000-2017 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.openapi.vcs.changes.committed;

import com.intellij.openapi.vcs.FilePath;
import com.intellij.openapi.vcs.changes.ContentRevision;
import com.intellij.openapi.vcs.diff.DiffProvider;
import com.intellij.openapi.vcs.diff.ItemLatestState;
import com.intellij.openapi.vcs.history.VcsRevisionNumber;
import com.intellij.openapi.vfs.VirtualFile;
import org.jetbrains.annotations.Nullable;

import java.util.HashMap;
import java.util.Map;

/**
 * @author yole
 */
public class MockDiffProvider implements DiffProvider {
  private final Map<VirtualFile, VcsRevisionNumber> myCurrentRevisionNumbers = new HashMap<>();
  
  public void setCurrentRevision(VirtualFile file, VcsRevisionNumber number) {
    myCurrentRevisionNumbers.put(file, number);
  }

  @Override
  @Nullable
  public VcsRevisionNumber getCurrentRevision(VirtualFile file) {
    return myCurrentRevisionNumbers.get(file);
  }

  @Override
  @Nullable
  public ItemLatestState getLastRevision(VirtualFile virtualFile) {
    throw new UnsupportedOperationException();
  }

  @Override
  @Nullable
  public ContentRevision createFileContent(VcsRevisionNumber revisionNumber, VirtualFile selectedFile) {
    throw new UnsupportedOperationException();
  }

  @Override
  public ItemLatestState getLastRevision(FilePath filePath) {
    throw new UnsupportedOperationException();
  }

  @Override
  public VcsRevisionNumber getLatestCommittedRevision(VirtualFile vcsRoot) {
    throw new UnsupportedOperationException();
  }
}
